Can We Make It to Mars?

In the 20 first century, the two or three nations that are at the forefront of space exploration will rule the world. Once people start colonizing the mar the moon and mars, there will not be enough space left for other countries. Even isro can spend a spacecraft to mars using its feeble, underpowered rockets. Anwesh says, can we make it to mars? As far as ilon mask's dream is concerned, what technological progress needs to be done to establish a human settlement on mars?